Novel ALE calling method for short-wave quick frequency hopping system
The invention mainly provides an automatic link establishment (ALE) calling method for a short-wave quick frequency hopping system. The method comprises the following steps that: when a calling station calls a called station, the calling station selects three frequency bands from a frequency hopping...
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Sprache: | chi ; eng |
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Zusammenfassung: | The invention mainly provides an automatic link establishment (ALE) calling method for a short-wave quick frequency hopping system. The method comprises the following steps that: when a calling station calls a called station, the calling station selects three frequency bands from a frequency hopping band width monitored by both calling station and called station to repeatedly transmit three same BWs (Burst Wave), and the called station evaluates the transmission characteristics of the channel by receiving three channels of signals and combining the frequency selecting characteristics of the channel fading of the short wave. By adopting the calling method, the probability that the narrow-band receiving frequency hopping system captures the signals is improved, the capturing time is shortened, and the link establishment time is also shortened. |
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